jet drill press jdp20mf

7/18/2019 Jet Drill Press JDP20MF

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Operating Instructions and Parts Manual

Drill PressModel: JDP-20MF

WMH TOOL GROUP

2420 Vantage DriveElgin, Illinois 60123 Part No. M-354170 Ph.: 800-274-6848 Revision G 04/04www.wmhtoolgroup.com Copyright © WMH Tool Group



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This manual has been prepared for the owner and operators of a JDP-20MF Drill Press. Its purpose,aside from machine operation, is to promote safety through the use of accepted correct operating andmaintenance procedures. Completely read the safety and maintenance instructions before operating orservicing the machine. To obtain maximum life and efficiency from your JET Drill Press, and to aid inusing the machine safely, read this manual thoroughly and follow instructions carefully.

Warranty

WMH Tool Group warrants every product it sells. If one of our tools needs service or repair, one of our Authorized Repair Stations located throughout the United States can give you quick service.

In most cases, any one of these WMH Tool Group Repair Stations can authorize warranty repair, assistyou in obtaining parts, or perform routine maintenance and major repair on your JET, Performax, Wilton,or Powermatic tools.

For the name of an Authorized Repair Station in your area, please call 1-800-274-6848, or visitwww.wmhtoolgroup.com

More Information

WMH Tool Group is consistently adding new products to the line. For complete, up-to-date productinformation, check with your local WMH Tool Group distributor, or visit www.wmhtoolgroup.com

WMH Tool Group Warranty

WMH Tool Group (including JET, Wilton and Powermatic brands) makes every effort to assure that itsproducts meet high quality and durability standards and warrants to the original retail consumer/purchaserof our products that each product be free from defects in materials and workmanship as follow: 1 YEARLIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECIFIED OTHERWISE. This Warranty doesnot apply to defects due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, repair or alterations outside our facilities, or to a lack of maintenance.

WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE,FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL. EXCEPT AS STATED HEREIN,

ANY IMPLIED WARRANTIES OR MERCHANTIBILITY AND FITNESS ARE EXCLUDED. SOMESTATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS, SO THE

ABOVE LIMITATION MAY NOT APPLY TO YOU. THE WMH TOOL GROUP SHALL IN NO EVENT BELIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL,

CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OURPRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTALOR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLYTO YOU.

To take advantage of this warranty, the product or part must be returned for examination, postageprepaid, to an Authorized Repair Station designated by our office. Proof of purchase date and anexplanation of the complaint must accompany the merchandise. If our inspection discloses a defect, wewill either repair or replace the product, or refund the purchase price if we cannot readily and quicklyprovide a repair or replacement, if you are willing to accept a refund. We will return repaired product orreplacement at WMH Tool Group’s expense, but if it is determined there is no defect, or that the defectresulted from causes not within the scope of WMH Tool Group’s warranty, then the user must bear thecost of storing and returning the product. This warranty gives you specific legal rights; you may also haveother rights, which vary from state to state.

WMH Tool Group sells through distributors only. WMH Tool Group reserve the right to effect at any time,without prior notice, those alterations to parts, fittings, and accessory equipment, which they may deemnecessary for any reason whatsoever.



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Table of Contents Warranty ........................................................................................................................................................ 2

Table of Contents .......................................................................................................................................... 3

Warnings .......................................................................................................................................................4

Specifications................................................................................................................................................6

Shipping Contents ......................................................................................................................................... 7

Required Tools .............................................................................................................................................. 7

Assembly.......................................................................................................................................................8

Before Assembly .......................................................................................................................................8

Column Assembly......................................................................................................................................8

Table Bracket ............................................................................................................................................ 8

Crank Handle............................................................................................................................................. 9

Column Lock Handle .................................................................................................................................9

Table Installation .......................................................................................................................................9

Head Assembly .......................................................................................................................................10

Chuck and Arbor Installation ...................................................................................................................10

Chuck and Arbor Removal ......................................................................................................................11

Adjustment ..................................................................................................................................................11

Depth Stop Adjustment............................................................................................................................11

Changing Spindle Speeds.......................................................................................................................11

Return Spring Adjustment .......................................................................................................................12

Work Light ...............................................................................................................................................12

Table Tilt Adjustment...............................................................................................................................12

Operation.....................................................................................................................................................13

Installing Drills .........................................................................................................................................13

Positioning the Workpiece....................................................................................................................... 13

Using the Vise .........................................................................................................................................13

Basic Operation.......................................................................................................................................13

Maintenance................................................................................................................................................13

Lubrication...................................................................................................................................................13

Electrical......................................................................................................................................................13

115 Volt Operation...................................................................................................................................13

230 Volt Operation...................................................................................................................................13

Grounding Instructions ............................................................................................................................14

Extension Cords ......................................................................................................................................14 Troubleshooting ..........................................................................................................................................15

Replacement Parts..................................................................................................................................16

Exploded View Drawing JDP-20MF........................................................................................................17

Parts List JDP-20MF ...............................................................................................................................18

Wiring Diagram ...........................................................................................................................................21

JDP-20MF Electrical Schematic – 115V .................................................................................................21

JDP-20MF Electrical Schematic – 230V .................................................................................................21

The specifications in this manual are given as general information and are not binding. WMH Tool Groupreserves the right to effect, at any time and without prior notice, changes or alterations to parts, fittings,and accessory equipment deemed necessary for any reason whatsoever.



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Warnings

1. Read and understand the entire owners manual before attempting assembly or operation.

2. Read and understand the warnings posted on the machine and in this manual. Failure to comply withall of these warnings may cause serious injury.

3. Replace the warning labels if they become obscured or removed.

4. This drill press is designed and intended for use by properly trained and experienced personnel only.If you are not familiar with the proper and safe operation of a drill press, do not use until propertraining and knowledge have been obtained.

5. Do not use this drill press for other than its intended use. If used for other purposes, WMH ToolGroup disclaims any real or implied warranty and holds itself harmless from any injury that may resultfrom that use.

6. Always wear approved safety glasses/face shields while using this drill press. Everyday eyeglassesonly have impact resistant lenses; they are not safety glasses.

7. Before operating this drill press, remove tie, rings, watches and other jewelry, and roll sleeves up pastthe elbows. Remove all loose clothing and confine long hair. Non-slip footwear or anti-skid floor strips

are recommended. Do not wear gloves.

8. Wear ear protectors (plugs or muffs) during extended periods of operation.

9. Some dust created by power sanding, sawing, grinding, drilling and other construction activitiescontain chemicals known to cause cancer, birth defects or other reproductive harm. Some examplesof these chemicals are:

• Lead from lead based paint.

• Crystalline silica from bricks, cement and other masonry products.

• Arsenic and chromium from chemically treated lumber.

10. Your risk of exposure varies, depending on how often you do this type of work. To reduce yourexposure to these chemicals, work in a well-ventilated area and work with approved safety

equipment, such as face or dust masks that are specifically designed to filter out microscopicparticles.

11. Do not operate this machine while tired or under the influence of drugs, alcohol or any medication.

12. Make certain the switch is in the OFF position before connecting the machine to the power supply.

13. Make certain the machine is properly grounded.

14. Make all machine adjustments or maintenance with the machine unplugged from the power source.

15. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjustingwrenches are removed from the machine before turning it on.

16. Keep safety guards in place at all times when the machine is in use. If removed for maintenancepurposes, use extreme caution and replace the guards immediately.

17. Make sure the drill press is firmly secured to the floor or bench before use.

18. Check damaged parts. Before further use of the machine, a guard or other part that is damagedshould be carefully checked to determine that it will operate properly and perform its intendedfunction. Check for alignment of moving parts, binding of moving parts, breakage of parts, mountingand any other conditions that may affect its operation. A guard or other part that is damaged shouldbe properly repaired or replaced.

19. Provide for adequate space surrounding work area and non-glare, overhead lighting.

20. Keep the floor around the machine clean and free of scrap material, oil and grease.



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21. Keep visitors a safe distance from the work area. Keep children away.

22. Make your workshop child proof with padlocks, master switches or by removing starter keys.

23. Give your work undivided attention. Looking around, carrying on a conversation and “horse-play” are

careless acts that can result in serious injury.

24. Maintain a balanced stance at all times so that you do not fall or lean against the spindle or othermoving parts. Do not overreach or use excessive force to perform any machine operation.

25. Use the right tool at the correct speed and feed rate. Do not force a tool or attachment to do a job forwhich it was not designed. The right tool will do the job better and safer.

26. Use recommended accessories; improper accessories may be hazardous.

27. Maintain tools with care. Keep drill bits sharp and clean for the best and safest performance. Followinstructions for lubricating and changing accessories.

28. Make sure the work piece is securely attached or clamped to the table. Never use your hand to holdthe work piece.

29. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris — donot use your hands.

30. Do not stand on the machine. Serious injury could occur if the machine tips over.

31. Never leave the machine running unattended. Turn the power off and do not leave the machine until itcomes to a complete stop.

32. Remove loose items and unnecessary work pieces from the area before starting the machine.

Familiarize yourself with the following safety notices used in this manual:

This means that if precautions are not heeded, it may result in minor injury and/orpossible machine damage.

This means that if precautions are not heeded, it may result in serious injury or possiblyeven death.

- - SAVE THESE INSTRUCTIONS - -



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SpecificationsModel Number................................................................................................................................JDP-20MFStock Number ..................................................................................................................................... 354170Swing....................................................................................................................................................20-1/2”Type ........................................................................................................................................................FloorDrilling Capacity ...........................................................................................................................................1”Chuck Size ................................................................................................................................................3/4”

Spindle Travel ........................................................................................................................................4-5/8”Spindle Distance to Base.....................................................................................................................46-3/4”Spindle Distance to Table (max.).........................................................................................................29-1/8”Table Size (Length x Width)....................................................................................................... 18-1/2" x 16"Spindle Taper..........................................................................................................................................MT-3Column Diameter ...................................................................................................................................3-3/8”Number of Spindle Speeds .........................................................................................................................12Range of Spindle Speeds (RPM).................................................................................................150 – 4,200Base Size ............................................................................................................................. 13-3/4” x 22-3/4”Overall Dimensions (H x W x D) ................................................................................66" x 18-1/2" x 31-1/2""Motor ....................................................................................1-1/2HP, 115/230V, 60Hz, 1Ph, Prewired 115VNet Weight (approx.) .......................................................................................................................... 282 lbs.Gross Weight .................................................................................................................................... 293 lbs.Carton Size (L x W x H): ..........................................................................................................26" x 13" x 58"



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Shipping ContentsUnpack the carton and verify that all parts listedbelow are included.

Main Parts

1 ea Head Assembly

1 ea Table

1 set Column and Table Bracket Assembly

1 ea Base

Additional Parts

1. 1 set Chuck and Chuck Key

2. 1 pc Arbor

3. 1 pc Drift Key

4. 1 pc Table Crank Handle

5. 1 pc Column Lock Handle

6. 3 pcs Downfeed Handles and Knobs

7. 1 pc 5/8"-11x2" Hex Cap Screw8. 1 set Locator Pin and Hex Nut

9. 4 pcs M10 x 40 Hex Cap Screws

10. 2 pc Hex Wrenches (3mm, 5mm)

Other Material

1 ea Owner’s Manual

1 ea Warranty Registration Card

Required Tools1. 17mm Box Wrench or a 6” – 8” Adjustable

Wrench

2. 15/16" wrench

Additional Parts



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Assembly

Read and understand allassembly instructions before attemptingassembly! Failure to comply may causeserious injury!

Do not attempt to turn onpower before this machine is completelyassembled.

Before Assembly

1. Remove the contents from the shippingcontainer.

2. Compare the contents of the shippingcontainer with the list on page 7. Report anyshortages or damage to your JET distributor.

3. Clean all rust protected surfaces withkerosene or a light solvent. Do not uselacquer thinner, paint thinner, or gasoline.These will damage plastic components andpainted surfaces.

Column Assembly

Referring to Figure 1:

1. Place the base (A) on a level floor.

2. Place the column assembly (B) on the base(A) and align the holes in the column supportwith the holes in the base.

3. Using a 17mm wrench, secure the column (B)with four M10 x 40 hex cap screws (C) to thebase.

Table Bracket

When shipped, the rack ring and rack are bundledtogether with the column in plastic wrap.

Referring to Figures 2 and 3:

1. Remove the wrap and take the rack ring (D)and rack (B) off the column (C).

2. Install the table bracket (A) together with therack (B) on the column (C) as shown inFigure 2.

3. Slide the rack ring (D) over the column (C),placing it so it rests against the rack (B) asshown in Figure 3 and tighten firmly with a3mm hex wrench (provided).

Figure 1

Figure 2

Figure 3



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Crank Handle


1. Loosen the setscrew (B) on the table crankhandle (A).

2. Slide the handle (A) onto the table bracketshaft.

3. Turn the handle until the setscrew is oppositethe flat section on the shaft, and tighten thesetscrew to secure the handle.

Column Lock Handle


Thread the column lock handle (A) into the tablebracket (B).

Table Installation

The table is heavy! This installation is a twoperson operation to avoid injury fromaccidental dropping.


1. Have one person hold the table (A) againstthe bracket (B), aligning the hole in themounting plate of the table with the threaded

hole in bracket.

2. Have the second person insert the 5/8"-11x2hex head screw (C) through the opening onthe bottom side of the table (A) and startthreading the screw into the bracket by hand.

3. Finish tightening the screw (C) with a 15/16"or wrench (wrench provided), but leave looseenough so the table can be tilted by hand.

4. Using the scale on the bracket as a guide, setthe table angle to 0 degrees (level).

5. Take the locator pin (D) and adjust the hex

nut towards the end of the thread as shown inthe close up view (D).

6. Insert the non-threaded end of the locator pin(D) into the hole on the table found just belowthe mounting screw. Press all the way in.

Note: The table may have to be tilted slightlyback and forth if the holes do not quite align.

7. Tighten the screw (C) with a 15/16" wrench.

Figure 4

Figure 5

Figure 6



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Head Assembly


1. With the aid of a second person, carefully liftthe head onto the column top and slide itdown into position

The head assembly is heavy! Use care whenlifting onto the column!

2. Rotate head assembly until sides of the pulleycover are parallel with the sides of the base.

3. Tighten two setscrews (A) with a 5mm hexwrench (provided) until they are snug.

4. Install three downfeed handles (B) into thedownfeed hub (C).

Chuck and Arbor Installation


1. Raise table to approximately seven inchesbelow spindle assembly, and lock the table inplace.

2. Place a piece of scrap wood (D) on the table.

3. Thoroughly clean the internal and externaltaper of the arbor (A), and chuck (B) and

spindle (C).Important: These three pieces must be free ofany rust protection, or lubricant. If they are notclean, the arbor and chuck will fail to seat in thespindle.

4. Place arbor (A) into the chuck (B).

5. Twist the chuck to retract the chuck jaws ifthey are exposed.

6. Place arbor and chuck assembly into thespindle (C).

7. Turn the arbor and chuck assembly until the

tang on the arbor engages the slot at the endof the spindle.

8. Lower the down feed handle (E) so that thechuck meets the scrap wood. Placedownward pressure on the feed handle toseat the arbor and chuck into the spindle.

Figure 7

Figure 8



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Chuck and Arbor Removal

1. Unplug machine from the power source.

2. Raise the table until it is about seven inchesbelow the chuck.

3. Place a piece of scrap wood on the table,and lower quill (A, Fig. 9) using the downfeedhandle.

4. Rotate spindle to align the keyhole in thespindle with the keyhole in the quill.

5. Insert the drift key (B, Fig. 9) into the alignedslots and tap lightly. The chuck and arborassembly should fall from the spindle.

Adjustment

Depth Stop Adjustment

To drill multiple holes at the same preset depth,use the depth stop:

1. Use a pencil to mark the depth the bit will drillinto the workpiece.

2. With the drill bit in the chuck, lower downfeedhandle to advance bit to your mark (A, Fig.10).

3. With your other hand, advance the lock nuts(B, Fig. 10) on the depth stop rod until theyare snug to the seat (C, Fig. 10).

4. The drill bit will now advance to this point.

5. To release, advance the nuts counter-clockwise to the top of the depth stop.

Changing Spindle Speeds

A spindle speed and pulley/belt arrangement chartis found on the inside of the pulley cover (D,Fig. 11), also shown in Figure 12. Refer to thischart whenever changing speeds.

8. To change spindle speeds:

1. Unplug the machine from the power source.

2. Loosen two bar knobs (E, Fig. 11) found oneach side of the head assembly.

3. Rotate the tension adjuster clockwise(F, Fig. 11) to bring the motor base as close

to the head as possible.4. For desired speed, change the location of

belts per pulley/belt arrangement chart.

5. Rotate the tension adjuster counterclockwise(F. Fig. 11) to tension the belts.

6. Tighten two bar knobs (E, Fig. 11). Belts areproperly tensioned when finger and thumbpressure midway between the two pulleyscauses approximately ½” deflection.

Figure 9

Figure 10

Figure 11



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Return Spring Adjustment

The return spring is adjusted at the factory andshould not need further adjustment. If adjustmentis deemed necessary, follow the steps belowwhile referring to Figure 12:

1. Unplug the machine from the power source.

2. Loosen two hex nuts (A). Do not remove.

Do not remove the coil springcover (Step 3). The torsion spring will uncoiland can cause serious injury.

3. Firmly hold the coil spring cover (B).

4. Pull out the cover and rotate until the pin (C)on the return spring plate engages the nextnotch in the coil spring cover. Turn the coverclockwise to decrease tension and counter-clockwise to increase tension.

5. Tighten two hex nuts (A). Do not over-tighten.Nuts should not contact the housing whentight. The hex nuts should be tightenedagainst each other.

Work Light

Install a light bulb, no larger than 60 watts into thesocket accessed from beneath the head. Therocker switch controls the light switch (D, Fig. 12).

Table Tilt Adjustment

To tilt the table (refer to Figures 13 and 14):

In the following steps, DO NOT OVERLOOSEN. This could result in the tableassembly to separate from the column, falland cause injury.

1. Using a 15/16" wrench, loosen the hex capscrew (B), located under the table, about oneturn.

2. Pull the locator pin out.

The pin may be seated quite tight; in whichcase turn the hex nut (B) clockwise with a3mm hex wrench to assist in extracting thepin

Note: When the table is in any position otherthan level (0 degrees), the locator pin is notused.

3. Tilt the table to the desired angle by aligningthe scale (in degrees) on the table (C) to themarker at the base of the bracket (D).

4. Tighten the hex cap screw (A).

Figure 12

Figure 13

Figure 14



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Operation

Installing Drills

Insert the drill into the chuck jaws with about1" insertion. When using a small drill do notinsert it so far that the jaws touch the flutes of

the drill. Make sure that the drill is centered inthe chuck before tightening the chuck with thekey.

Positioning the Workpiece

Always place a piece of wood (or plywood) onthe table. This will prevent "splintering" ormaking heavy burrs on the underside of theworkpiece as the drill breaks through. The woodshould contact the left side of the column.

Using the Vise

For the small workpiece that cannot be clampedto the table, use a drill press vise. The vise mustbe clamped or bolted to the table. Always use aback-up piece of scrap wood to cover the table.This protects both the table and the drill bit.

Basic Operation

Place material to be drilled in such as way as tocome into contact with the left side of thecolumn. This prevents the material fromspinning.

If the work piece is not large enough to comeinto contact with the column, use a clamp ordrill press vise that is securely fastened tothe table! Failure to comply may causeserious injury!

Feed the bit into the material with only enoughforce to allow the drill bit to work. Feeding tooslowly may cause burning of the workpiece.Feeding too quickly may cause the motor to stopand/or the drill bit to break.

Generally speaking, the smaller the drill bit, thegreater the RPM required. Wood requires higherspeeds than metal. Metal is usually drilled atslower speeds.

In dusty environments, frequently blow out anydust that accumulates inside the motor.

Maintenance

Before any intervention on the machine,disconnect it from the electrical supply by

pulling out the plug or switching off the mainswitch! Failure to comply may cause seriousinjury.

A coat of automobile-type wax applied to thetable and column will help to keep the surfacesclean.

If the power cord is worn, cut, or damaged inany way, have it replaced immediately.

Lubrication All of the ball bearings are packed with grease atthe factory. They require no further lubrication.

Periodically lubricate the gear, rack, tableelevation mechanism, the splines (grooves) inthe spindle, and the teeth of the quill with a #2tube grease.

Electrical

115 Volt Operation


As received from the factory, your drill press isready to run at 115-volt operation. This drillpress, when wired for 115 volt, is intended foruse on a circuit that has an outlet and a plug thatlooks like the one illustrated in (A). A temporaryadapter, which looks like the adapter shown in(B), may be used to connect this plug to a two-pole receptacle if a properly grounded outlet isnot available. The temporary adapter shouldonly be used until a properly grounded outletcan be installed by a qualified electrician. Thisadapter is not applicable in Canada. The greencolored rigid ear, lug, or tab, extending from theadapter, must be connected to a permanentground such as a properly grounded outlet box.

Figure 15

230 Volt Operation


If 230V, single-phase operation is desired, thefollowing instructions must be followed:

1. Disconnect the machine from the powersource.

2. The JET drill press motor has fournumbered leads that are factory connectedfor 115V operation, as shown in (A). For



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230V operation reconnect the leads asshown in (B).

3. The 115V attachment plug (C), supplied withthe drill press, must be replaced with aUL/CSA listed plug suitable for 230Voperation (D). Contact your local AuthorizedJET Service Center or qualified electricianfor proper procedures to install the plug.

The drill press must comply with all local andnational codes after the 230-volt plug isinstalled.

4. The drill press with a 230-volt plug shouldonly be connected to an outlet having thesame configuration as shown in (D). Noadapter is available nor should be used withthe 230-volt plug.

Figure 16

Grounding Instructions

This tool must be grounded while in use toprotect the operator from electric shock.

In the event of a malfunction or breakdown,grounding provides a path of least resistance forelectric current to reduce the risk of electricshock. This tool is equipped with an electriccord having an equipment-grounding conductorand a grounding plug. The plug must beplugged into a matching outlet that is properlyinstalled and grounded in accordance with alllocal codes and ordinances.

Do not modify the plug provided. If it will not fitthe outlet, have the proper outlet installed by aqualified electrician.

Improper connection of the equipment-grounding conductor can result in a risk ofelectric shock. The conductor, with insulationhaving an outer surface that is green with orwithout yellow stripes, is the equipment-grounding conductor. If repair or replacement ofthe electric cord or plug is necessary, do not

connect the equipment-grounding conductor to alive terminal.

Check with a qualified electrician or servicepersonnel if the grounding instructions are notcompletely understood, or if in doubt as towhether the tool is properly grounded. Use onlythree wire extension cords that have three-pronggrounding plugs and three-pole receptacles that

accept the tool’s plug.

Repair or replace a damaged or worn cordimmediately.

Extension Cords

Make sure your extension cord is in goodcondition. When using an extension cord, besure to use one heavy enough to carry thecurrent your machine will draw. An undersizedcord will cause a drop in the line voltageresulting in power loss and overheating. Thetable following shows the correct size to use

depending on the cord length and nameplateampere rating. If in doubt, use the next heaviergauge. Remember, the smaller the gaugenumber, the heavier the cord.

Length ofCord

AWG

0–25 16

25-50 14

51-100 12

The drill press with a 230-volt plug should onlybe connected to an outlet having the sameconfiguration (D, Fig. 16). No adapter isavailable or should be used with the 230-voltplug.

Important: In all cases (115 or 230 volts), makecertain the receptacle in question is properlygrounded. If you are not sure, have a registeredelectrician check the receptacle.



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Troubleshooting

Trouble Probable Cause Remedy

Drill press unplugged from wall, ormotor.

Check all plug connections.

Fuse blown, or circuit breaker tripped. Replace fuse, or reset circuit breaker.

Cord damaged. Replace cord.

Drill press will not

start.

Starting capacitor bad. Replace starting capacitor.

Extension cord too light or too long.Replace with adequate size andlength cord.Drill press does not

come up to speed.Low current. Contact a qualified electrician.

Stand on uneven surface. Adjust stand so that it rests evenly onthe floor.Drill Press vibrates

excessively.Bad belt(s). Replace belts.

Incorrect belt tension. Adjust belt tension. See theChanging Spindle Speeds section.

Dry spindle.Lubricate spindle. See theLubrication section.

Loose spindle pulley.Check tightness of retaining nut onpulley, and tighten if necessary.

Noisy Operation.

Loose motor pulley. Tighten setscrews in pulleys.

Incorrect Speed.Change to appropriate speed; see theChanging Spindle Speeds section.

Chips not clearing from hole or bit. Retract drill bit frequently to removechips.

Dull drill bit. Resharpen, or replace drill bit.

Workpiece Burns.

Feeding too slowly. Increase feed rate.

Bit sharpened incorrectly. Resharpen bit correctly.

Bent drill bit. Replace drill bit.Drill bit wanders.

Bit, or chuck not installed properly. Reinstall the chuck, or bit properly.

Wood splinters on the

underside.

No backing board used.Place a scrap board underneath the

workpiece to prevent splintering.

Workpiece pinching the bit. Support or clamp workpiece.

Excessive feed rate. Decrease feed rate.

Chuck jaws not tight. Tighten chuck jaws.Drill bit binds inworkpiece.

Improper belt tension. Adjust belt tension. See the ChangingSpindle Speeds section.



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Troubleshooting (cont.)

Trouble Probable Cause Remedy

Bent drill bit. Replace drill bit.

Worn spindle bearings. Replace spindle bearings.Excessive drill bitrunout, or wobble.

Bit, or chuck not properly installed. Reinstall the bit, or chuck properly.

Quill returns too slow,or too fast.

Spring has improper tension. Adjust spring tension. See the ReturnSpring Adjustment section.

Chuck or arbor doesnot stay in place.

Dirt, grease, etc on arbor, chuck, orspindle.

Clean all mating surfaces thoroughlywith a cleaner degreaser.

PartsReplacement Parts

Replacement parts are listed on the following pages. To order parts or reach our service department, call800-274-6848 between 7:00 a.m. and 6:00 p.m. (CST), Monday through Friday. Having the ModelNumber and Serial



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Exploded View Drawing JDP-20MF



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Parts List JDP-20MF

Index No. Part No. Description Size Qty

1 ...............11300117 .................Base JDP-20MF................................................... ....................................1.................11400401A1.............Column & Holder Assembly (Index 2A, 2B).........Ø85mm....................... 12A.............JDP20-102A.............Column................................................................. ....................................12B.............JDP20-102B.............Holder................................................................... ....................................13 ...............TS-1525021 .............Socket Set Screw.................................................M10x12 ....................... 1

4 ...............TS-1523041 .............Socket Set Screw.................................................M6x12 .........................15 ...............TS-1492041 .............Hex Cap Screw....................................................M12x40 ....................... 46 ...............11400607 .................Bracket................................................................. .................................... 17 ...............10600702 .................Pinion Gear .......................................................... ....................................18 ...............10600802 .................Gear Shaft............................................................ .................................... 19 ...............10600902 .................Worm Pinion......................................................... ......................................10A...........11501003 .................Crank Handle ....................................................... ....................................111 .............JDP20-111 ...............Pan Head Screw.................................................. M5x6 ...........................213 .............TS-0071031 .............Hex Cap Screw....................................................5/8”-11x2” ...................114 .............10901402 .................Locator Pin........................................................... ....................................115 .............TS-0561011 .............Hex Nut ................................................................1/4”-20......................... 116 .............11401601 .................Angle Scale.......................................................... ....................................117 .............10601702 .................Centering Scale ................................................... ....................................1

18 .............2658MZDU36...........Drive Screw..........................................................Ø2.3x5 ........................ 819 .............10601901 .................Column Lock Handle............................................ ....................................121 .............11302119 .................Work Table........................................................... ....................................122 .............11402207 .................Rack..................................................................... ....................................123 .............11402311 .................Rack Ring............................................................. ....................................124 .............TS-2276081 .............Socket Set Screw.................................................M6x8 ...........................125 .............11302522 .................Head..................................................................... .................................... 126 .............TS-1525021 .............Socket Set Screw.................................................M10x12 ....................... 227 .............10602701 .................Lamp Socket........................................................ .................................... 128 .............TS-1534042 .............Pan Head Screw..................................................M6x12 ......................... 229 .............11502901 .................Handle Shifter ...................................................... ....................................130 .............10603002 .................Cam...................................................................... ....................................131 .............TS-1490021 .............Hex Cap Screw....................................................M8x16 .........................1

32 .............11503212 .................Slide Bar (right) .................................................... ....................................133 .............10903302 .................Slide Bar Bolt .......................................................M10x40 ....................... 234 .............11403437 .................Motor Base........................................................... ....................................135 .............TS-0720111 .............Lock Washer........................................................1/2” .............................. 236 .............TS-1540081 .............Hex Nut ................................................................M12............................. 237 .............10603704 .................Hub....................................................................... ....................................138 .............11303812 .................Feed Shaft............................................................ ....................................139 .............2536MBE611 ...........Spring Pin.............................................................Ø5x16 .........................143A...........10604303A1.............Handle Bar Assy .................................................. ....................................345 .............10661801 .................Shaft Collar .......................................................... ....................................146 .............13105102 .................Scale .................................................................... ....................................149 .............11404903A2.............Coil Spring & Cover ............................................. ....................................151 .............11305107 .................Spring Seat .......................................................... ....................................153 .............TS-0561052 .............Hex Nut ................................................................1/2”-20 UNF.............. 1254 .............10605403 .................Quill Set Screw .................................................... ....................................155 .............TS-1540071 .............Hex Nut ................................................................M10............................. 156 .............11305616 .................Quill ...................................................................... ....................................157 .............11405704 .................Rubber Washer.................................................... ....................................158 .............11305801 .................Spindle ................................................................. .................................... 159 .............BB-6206ZZ...............Ball Bearing..........................................................6206ZZ........................160 .............2003A02906.............Thrust Bearing ..................................................... ....................................161 .............BB-6204Z.................Ball Bearing..........................................................6204Z.......................... 162 .............11406202 .................Washer................................................................. ....................................163 .............11406302 .................Lock Nut ............................................................... .................................... 1



19


64 .............11406403 .................Spindle Nut........................................................... ....................................165 .............11406508 .................Drive Sleeve......................................................... ....................................166 .............BB-6206Z.................Ball Bearing.......................................................... 6206Z......................... 267 .............11406706 .................Collar.................................................................... ....................................168 .............11406803 .................Retaining Ring ..................................................... ....................................269 .............10606902 .................Pulley Set Nut ...................................................... ....................................170 .............11407019 .................Spindle Pulley ......................................................12S,A ..........................1

71 .............21015M3J40 ............Arbor ....................................................................MT3xJT4..................... 172A...........561709 .....................Chuck & Chuck Key ............................................. ....................................173 .............10607303 .................Wedge.................................................................. .................................... 174 .............8211422651 .............Motor .................................................................... ....................................175 .............C0014170122 ..........Motor Cable.......................................................... ....................................176 .............TS-1490041 .............Hex Cap Screw....................................................M8x25 .........................477 .............TS-1550061 .............Flat Washer..........................................................M8............................... 478 .............TS-1540061 .............Hex Nut................................................................M8............................... 479 .............11037972 .................Motor Pulley .........................................................19mm ..........................180 .............2571MNC109...........Key .......................................................................5x6x27 ........................181 .............TS-1524031 .............Socket Set Screw.................................................M8x12 ......................... 183 .............10608301 .................Wire Clip............................................................... ....................................184 .............TS-1533032 .............Pan Head Screw..................................................M5x10 ......................... 1

85 .............2807AB08B3............Power Cord .......................................................... .................................... 187 .............2850AG5A14 ...........Switch................................................................... ....................................188 .............11308801 .................Switch Box ........................................................... ....................................189 .............TS-1534042 .............Pan Head Screw..................................................M6x12 ......................... 290A...........11309014A1.............Pulley Cover Assembly ........................................ ....................................192 .............TS-1534052 .............Pan Head Screw.................................................. M6x16 .........................495 .............11409511 .................Center Pulley Assy............................................... ....................................196 .............BB-6202Z.................Ball Bearing..........................................................6202Z.......................... 298 .............11409803 .................Center Pulley Shaft.............................................. ....................................199 .............VB-A32.....................Belt .......................................................................A-32 ............................ 2101 ...........2501MNVN11 ..........Rubber Washer.................................................... ....................................4121 ...........TS-2286302 .............Pan Head Screw..................................................M6x30 ......................... 2128 ...........2653MBDE15...........Tapping Screw .....................................................M4x20 .........................2

129 ...........TS-1504051 .............Socket Head Cap Screw......................................M8x25 ......................... 1130 ...........TS-1504061 .............Socket Head Cap Screw......................................M8x30 ......................... 2137 ...........10308846 .................Switch Cover........................................................ ....................................1138 ...........TS-1533042 .............Pan Head Screw.................................................. M5x12 ......................... 2139 ...........2852U55702 ............Bulb Switch .......................................................... .................................... 1140 ...........11514001 .................Motor Bar (left) ..................................................... ....................................1147 ...........JDP20-1147.............Cover Edge Strip.................................................. ....................................1149 ...........2536MBE619 ...........Spring Pin.............................................................Ø8x25 .........................2160 ...........11316902 .................Nameplate............................................................ ....................................1162 ...........10216210 .................Warning Label...................................................... ....................................1163 ...........JDP20-1163.............Motor Label .......................................................... .................................... 1165 ...........11316501.................Speed Chart......................................................... ....................................1601 ...........TS-1533032 .............Pan Head Screw.................................................. M5x10 ......................... 2602 ...........TS-0733041 .............Lock Washer External Tooth................................1/4".............................. 2

605 ...........2536MBE623 ...........Spring Pin.............................................................Ø6x16 .........................1606 ...........2536MBE625 ...........Spring Pin.............................................................Ø2.5x10 ...................... 1607 ...........TS-0720091 .............Lock Washer ........................................................3/8” .............................. 2610 ...........TS-2286202 .............Pan Head Screw..................................................M6x20 ......................... 2611 ...........11361101.................Seat...................................................................... .................................... 1612 ...........TS-1540071 .............Hex Nut ................................................................M10............................. 1613 ...........11361301.................Scale Bolt ............................................................. ....................................1614 ...........13005701 .................Nut........................................................................M16-2.0P .................... 2615 ...........13005601 .................Washer................................................................. ....................................1616 ...........TS-1504051 .............Socket Head Cap Screw......................................M8x25 ......................... 1617 ...........11361701 .................Set Ring ............................................................... ....................................1



20


618 ...........10604505 .................Round Nut ............................................................ ....................................1619 ...........TS-0720091 .............Lock Washer ........................................................3/8” .............................. 1700 ...........TS-152704 ...............Hex Wrench ......................................................... 3mm............................ 1701 ...........TS-152706 ...............Hex Wrench ......................................................... 5mm............................ 1801 ...........28065558B3.............Bulb Wire.............................................................. ....................................1805 ...........10280501 .................Bulb Sticker.......................................................... ....................................1903 ...........2801ABRF04 ...........Strain Relief.......................................................... ....................................2

817 ...........28065558B3.............Bulb Wire.............................................................. ....................................1904 ...........JDP20-1904.............Strain Relief.......................................................... ....................................1



21

Wiring Diagram

JDP-20MF Electrical Schematic – 115V

WHITE

BLACKBLACK

WHITE

GREENGREEN

GROUND

1

3 2

4

W H I T E

B L A C K

G R E E N

ON / OFF SWITCH

LAMP SWITCH

BLACK

BLACK

BLACK

WHITE

LAMP

STARTING CAPACITOR

400MFD 125 VAC

JDP-20MF Electrical Schematic – 230V

GREEN

GROUND

W H I T E

B L A C K

G R E E N

4

BLACK

WHITE 1

3 2

400MFD 125 VAC

WHITE

GREEN

BLACK

LAMP SWITCH

BLACK

BLACK

WHITE

BLACK

LAMP

ON / OFF SWITCH

STARTING CAPACITOR



22

NOTES



23

NOTES



WMH Tool Group

2420 Vantage Drive

Elgin, Illinois 60123

Phone: 800-274-6848

www.wmhtoolgroup.com

jet drill press jdp20mf

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